Zobrazeno 1 - 10
of 1 213
pro vyhledávání: '"Williams, R C"'
Autor:
Curley, S. P. M., Huddart, B. M., Kamenskyi, D., Coak, M. J., Williams, R. C., Ghannadzadeh, S., Schneider, A., Okubo, S., Sakurai, T., Tidey, J. P., Graf, D., Clark, S. J., Blundell, S. J., Pratt, F. L., Telling, M. T. F., Lancaster, T., Manson, J. L., Goddard, P. A.
We present here a study of the magnetic properties of the antiferromagnetic dimer material CuVOF$_4$(H$_2$O)$_6\cdot$H$_2$O, in which the dimer unit is composed of two different $S = 1/2$ species, Cu(II) and V(IV). An applied magnetic field of $\mu_0
Externí odkaz:
http://arxiv.org/abs/2109.01529
Autor:
Opherden, D., Nizar, N., Richardson, K., Monroe, J. C., Turnbull, M. M., Polson, M., Vela, S., Blackmore, W. J. A., Goddard, P. A., Singleton, J., Choi, E. S., Xiao, F., Williams, R. C., Lancaster, T., Pratt, F. L., Blundell, S. J., Skourski, Y., Uhlarz, M., Ponomaryov, A. N., Zvyagin, S. A., Wosnitza, J., Baenitz, M., Heinmaa, I., Stern, R., Kühne, H., Landee, C. P.
Publikováno v:
Phys. Rev. B 102, 064431 (2020)
We report on a comprehensive characterization of the newly synthesized Cu$^{2+}$-based molecular magnet [Cu(pz)$_2$(2-HOpy)$_2$](PF$_6$)$_2$ (CuPOF), where pz = C$_4$H$_4$N$_2$ and 2-HOpy = C$_5$H$_4$NHO. From a comparison of theoretical modeling to
Externí odkaz:
http://arxiv.org/abs/2005.12058
Autor:
Lancaster, T., Huddart, B. M., Williams, R. C., Xiao, F., Franke, K. J. A., Baker, P. J., Pratt, F. L., Blundell, S. J., Schlueter, J. A., Mills, M. B., Maahs, A. C., Preuss, K. E.
We present the results of muon-spin relaxation ($\mu^{+}$SR) measurements on antiferromagnetic and ferromagnetic spin chains. In antiferromagnetic CuF$_{2}$(pyz) we identify a transition to long range magnetic order taking place at $T_{\mathrm{N}} =
Externí odkaz:
http://arxiv.org/abs/1905.04913
Autor:
Lancaster, T., Xiao, F., Huddart, B. M., Williams, R. C., Pratt, F. L., Blundell, S. J., Clark, S. J., Scheuermann, R., Goko, T., Ward, S., Manson, J. L., Rüegg, Ch., Krämer, K. W.
We present the results of muon-spin spectroscopy ($\mu^{+}$SR) measurements on the molecular spin ladder system (Hpip)$_{2}$CuBr$_{4(1-x)}$Cl$_{4x}$, [Hpip=(C$_{5}$H$_{12}$N)]. Using transverse field $\mu^{+}$SR we are able to identify characteristic
Externí odkaz:
http://arxiv.org/abs/1806.09402
Autor:
Möller, J. S., Lancaster, T., Blundell, S. J., Pratt, F. L., Baker, P. J., Xiao, F., Williams, R. C., Hayes, W., Turnbull, M. M., Landee, C. P.
Publikováno v:
Phys. Rev. B 95, 020402 (2017)
We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation ($\mu^{+}$SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless To
Externí odkaz:
http://arxiv.org/abs/1608.05059
Autor:
Mannig, A., Möller, J. S., Thede, M., Hüvonen, D., Lancaster, T., Xiao, F., Williams, R. C., Guguchia, Z., Khasanov, R., Morenzoni, E., Zheludev, A.
Publikováno v:
Phys. Rev. B 94, 144418 (2016)
Pressure-induced ordering close to a $z=1$ quantum critical point is studied in the presence of bond disorder in the quantum spin system (C$_4$H$_{12}$N$_2$)Cu$_2$(Cl$_{1-x}$Br$_{x}$)$_6$ (PHCX) by means of muon-spin rotation and relaxation. As for t
Externí odkaz:
http://arxiv.org/abs/1607.05117
Autor:
Williams, R. C., Xiao, F., Thomas, I. O., Clark, S. J., Lancaster, T., Cornish, G. A., Blundell, S. J., Hayes, W., Paul, A. K., Felser, C., Jansen, M.
We present the results of zero-field muon-spin relaxation measurements made on the double perovskite insulators Sr$_{2}B$OsO$_6$ ($B={\rm Fe, Y, In}$). Spontaneous muon-spin precession indicative of quasistatic long range magnetic ordering is observe
Externí odkaz:
http://arxiv.org/abs/1512.04410
Autor:
Williams, R. C., Xiao, F., Lancaster, T., De Renzi, R., Allodi, G., Bordignon, S., Freeman, P. G., Pratt, F. L., Giblin, S. R., Möller, J. S., Blundell, S. J., Boothroyd, A. T., Prabhakaran, D.
Publikováno v:
Phys. Rev. B 93, 140406 (2016)
We report the results of a muon-spin relaxation ($\mu$SR) investigation of La$_{2-x}$Sr$_{x}$CoO$_{4}$, an antiferromagnetic insulating series which has been shown to support charge ordered and magnetic stripe phases and an hourglass magnetic excitat
Externí odkaz:
http://arxiv.org/abs/1510.06244
Autor:
Lancaster, T., Williams, R. C., Thomas, I. O., Xiao, F., Pratt, F. L., Blundell, S. J., Loudon, J. C., Hesjedal, T., Clark, S. J., Hatton, P. D., Hatnean, M. Ciomaga, Keeble, D. S., Balakrishnan, G.
We present the results of transverse field (TF) muon-spin rotation (muSR) measurements on Cu2OSeO3, which has a skyrmion lattice (SL) phase. We measure the response of the TF muSR signal in that phase along with the surrounding ones, and suggest how
Externí odkaz:
http://arxiv.org/abs/1410.4731
Autor:
Ali, N. Z., Williams, R. C., Xiao, F., Clark, S. J., Lancaster, T., Blundell, S. J., Sheptyakov, D. V., Jansen, M.
We have investigated the structural and magnetic transitions in CsCoO$_2$ using calorimetric measurements, neutron powder diffraction (NPD), density functional theory (DFT) calculations and muon-spin relaxation ($\mu$SR) measurements. CsCoO$_2$ exhib
Externí odkaz:
http://arxiv.org/abs/1410.3686